fix: fix URL.name on jsdom (#9767)

hi-ogawa · web-flow · commit 031f3a374939 · 2026-03-02T13:37:33.000+01:00
diff --git a/packages/vitest/src/integrations/env/jsdom.ts b/packages/vitest/src/integrations/env/jsdom.ts
@@ -232,7 +232,7 @@ export default <Environment>{
 }
 
 function createCompatRequest(utils: CompatUtils) {
-  return class Request extends NodeRequest_ {
+  class Request extends NodeRequest_ {
     constructor(...args: [input: RequestInfo, init?: RequestInit]) {
       const [input, init] = args
       if (init?.body != null) {
@@ -254,10 +254,11 @@ function createCompatRequest(utils: CompatUtils) {
       return instance instanceof NodeRequest_
     }
   }
+  return Request
 }
 
 function createJSDOMCompatURL(utils: CompatUtils): typeof URL {
-  return class URL extends NodeURL {
+  class URL extends NodeURL {
     static createObjectURL(blob: any): string {
       if (blob instanceof utils.window.Blob) {
         const compatBlob = utils.makeCompatBlob(blob)
@@ -269,7 +270,8 @@ function createJSDOMCompatURL(utils: CompatUtils): typeof URL {
     static [Symbol.hasInstance](instance: unknown): boolean {
       return instance instanceof NodeURL
     }
-  } as typeof URL
+  }
+  return URL
 }
 
 interface CompatUtils {
diff --git a/test/core/test/environments/jsdom.spec.ts b/test/core/test/environments/jsdom.spec.ts
@@ -319,6 +319,11 @@ test('URL.createObjectUrl works properly', () => {
   }).not.toThrow()
 })
 
+test('compat classes preserve their .name property', () => {
+  expect(URL.name).toBe('URL')
+  expect(Request.name).toBe('Request')
+})
+
 test('jsdom global is exposed', () => {
   // @ts-expect-error -- jsdom is not exposed in our types because we use a single tsconfig for all
   const dom = jsdom

Original file line number	Diff line number	Diff line change
`@@ -232,7 +232,7 @@ export default <Environment>{`
`232`	`232`	`}`
`233`	`233`
`234`	`234`	`function createCompatRequest(utils: CompatUtils) {`
`235`		`- return class Request extends NodeRequest_ {`
	`235`	`+ class Request extends NodeRequest_ {`
`236`	`236`	`constructor(...args: [input: RequestInfo, init?: RequestInit]) {`
`237`	`237`	`const [input, init] = args`
`238`	`238`	`if (init?.body != null) {`
`@@ -254,10 +254,11 @@ function createCompatRequest(utils: CompatUtils) {`
`254`	`254`	`return instance instanceof NodeRequest_`
`255`	`255`	`}`
`256`	`256`	`}`
	`257`	`+ return Request`
`257`	`258`	`}`
`258`	`259`
`259`	`260`	`function createJSDOMCompatURL(utils: CompatUtils): typeof URL {`
`260`		`- return class URL extends NodeURL {`
	`261`	`+ class URL extends NodeURL {`
`261`	`262`	`static createObjectURL(blob: any): string {`
`262`	`263`	`if (blob instanceof utils.window.Blob) {`
`263`	`264`	`const compatBlob = utils.makeCompatBlob(blob)`
`@@ -269,7 +270,8 @@ function createJSDOMCompatURL(utils: CompatUtils): typeof URL {`
`269`	`270`	`static [Symbol.hasInstance](instance: unknown): boolean {`
`270`	`271`	`return instance instanceof NodeURL`
`271`	`272`	`}`
`272`		`- } as typeof URL`
	`273`	`+ }`
	`274`	`+ return URL`
`273`	`275`	`}`
`274`	`276`
`275`	`277`	`interface CompatUtils {`